Process of treating vanadium ores.



FELIPE DE Lucio, or HUABAUCAGA, PERU mosses or" resume transom onus.

No. sessyre.

Specification of Letters latent.

Patented Aug. 13, 1907.

Application filed Hsroh 26, 190-?- Bsi'isl No. 2164.725.

suming only hypochlorite of calcium and steam, as the main alkaline dissulvent (hypochiorite of sodium) is regenerated in the process.

A further object is to provide an improved process extremely easy to carry out, better adapted for'vanadiuiri ores and cheaper than other known processes.

with these objects in view, the invention consists in certain novel steps in the process which will he more fully hereinafter described and pointed out in the claims.

Oxidized ores (or roasted suliureted ores) are first lmilcd with a solution of hypochlorite of sodium, containing more than six atoms of sodium to one molecule of vanadic acid in the ore. This will oxidize all the vanadium to pentoxidi chlorin will be evolved, and the resulting .vanadate of sodium is then dissolved as such and extracted with hot water. i The solution of alkaline vanadate, when cold, is treated with a like amount of hypochlorite of calcium. Vanadate of calcium is precipitated and hypochlorite of sodium regenerated, which latter can housed again for the treatment of new ores, increasing its content of alkaline hypochlorite to the required amount.

the process and I do not, therefore, restrict'myseliio the exact steps set forth.

Having fully described my invention, whet I claim as new and desire to secure by'Letters-Patent is:

1. The process of treating vanadium ores, which con' sists in boiling oxidized or roasted suifureted ores with a solution of hypocliloi-ite of sodium-to oxidize the vanadium and evolve chlorin, and extracting the resulting vanadett of sodium with hoi-v water.

The process of ireai'iug vanadium ores'which consists in boiling oxidized or roasted sulfureted ores with E soluiion of hypocliiorite of sodium containing as a minimum six atoms of sodium to one molecule of vanadlc acid in the ore to oxidize the vanadium to pentoxid, chiorin is evolved, and extracting the resulting vzinndateof sodium as such with hot water.

:l. The process of'trcutiug vanadiuui ores, which consists in boiling oxidized or roasted sulfureted ores with a solution of liypochlorite of sodium to oxidize the vanadium and evolve chlorin, extracting the resulting vnnudate of SOilllilll \\'li1l hot water, treating the alkaline vnnudate when cold with a like amount of liypochloritu of calcium to precipitate the vunadute of calcium and regenerating the hypochlorite of sodium.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

Fnmi'u m: Lucio.

Witnesses Am. Ssmnox. W. Tnom'sox. 

